Cat post with platform



FIG. 1 is a top, front perspective view of a cat post with platform, shown exploded for clarity of disclosure;

FIG. 2 is a top, front perspective view thereof;

FIG. 3 is a top, rear perspective view thereof;

FIG. 4 is a top plan view thereof; and,

FIG. 5 is a bottom plan view thereof.

The broken lines in the drawings depict portions of the cat post with platform that form no part of the claimed design. 

CLAIM The ornamental design for a cat post with platform, as shown and described. 